Radical addition fragmentation chain transfer (RAFT) polymerization of ferrocenyl (Meth)acrylates |
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| Authors: | Christoph Herfurth Dominik Voll Jens Buller Jan Weiss Christopher Barner‐Kowollik André Laschewsky |
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| Institution: | 1. Institut für Chemie, Universit?t Potsdam, Karl‐Liebknecht‐Str. 24‐25, 14476 Potsdam‐Golm, Germany;2. Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 18, 76128 Karlsruhe, Germany;3. Fraunhofer Institut für Angewandte Polymerforschung, Geiselbergstr. 69, 14476 Potsdam‐Golm, Germany |
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| Abstract: | We report on the controlled free radical homopolymerization of 1‐ferrocenylethyl acrylate as well as of three new ferrocene bearing monomers, namely 4‐ferrocenylbutyl acrylate, 2‐ferrocenylamido‐2‐methylpropyl acrylate, and 4‐ferrocenylbutyl methacrylate, by the RAFT technique. For comparison, the latter monomer was polymerized using ATRP, too. The ferrocene containing monomers were found to be less reactive than their analogues free of ferrocene. The reasons for the low polymerizability are not entirely clear. As the addition of free ferrocene to the reaction mixture did not notably affect the polymerizations, sterical hindrance by the bulky ferrocene moiety fixed on the monomers seems to be the most probable explanation. Molar masses found for 1‐ferrocenylethyl acrylate did not exceed 10,000 g mol?1, while for 4‐ferrocenylbutyl (meth)acrylate molar masses of 15,000 g mol?1 could be obtained. With PDIs as low as 1.3 in RAFT polymerization of the monomers, good control over the polymerization was achieved. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012 |
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| Keywords: | ferrocene living radical polymerization (LRP) monomers radical addition fragmentation chain transfer (RAFT) radical polymerization redox polymers synthesis |
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